本文整理汇总了C++中BlockState类的典型用法代码示例。如果您正苦于以下问题：C++ BlockState类的具体用法？C++ BlockState怎么用？C++ BlockState使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了BlockState类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: getBlockState
void DSEContext::processDebugValueAddrInst(SILInstruction *I, DSEKind Kind) {
BlockState *S = getBlockState(I);
SILValue Mem = cast<DebugValueAddrInst>(I)->getOperand();
// Are we building genset and killset.
if (isBuildingGenKillSet(Kind)) {
for (unsigned i = 0; i < S->LocationNum; ++i) {
if (!S->BBMaxStoreSet.test(i))
continue;
if (AA->isNoAlias(Mem, LocationVault[i].getBase()))
continue;
S->stopTrackingLocation(S->BBGenSet, i);
S->startTrackingLocation(S->BBKillSet, i);
}
return;
}
// Are we performing dead store elimination.
if (isPerformingDSE(Kind)) {
for (unsigned i = 0; i < S->LocationNum; ++i) {
if (!S->isTrackingLSLocation(S->BBWriteSetOut, i))
continue;
if (AA->isNoAlias(Mem, LocationVault[i].getBase()))
continue;
S->stopTrackingLocation(S->BBWriteSetOut, i);
}
return;
}
llvm_unreachable("Unknown DSE compute kind");
}示例2: getBlockState
void DSEContext::invalidateLSLocationBaseForGenKillSet(SILInstruction *I) {
BlockState *S = getBlockState(I);
for (unsigned i = 0; i < S->LocationNum; ++i) {
if (LocationVault[i].getBase() != I)
continue;
S->startTrackingLocation(S->BBKillSet, i);
S->stopTrackingLocation(S->BBGenSet, i);
}
}示例3: getBlockState
void DSEContext::processUnknownReadInstForDSE(SILInstruction *I) {
BlockState *S = getBlockState(I);
for (unsigned i = 0; i < S->LocationNum; ++i) {
if (!S->isTrackingLocation(S->BBWriteSetMid, i))
continue;
if (!AA->mayReadFromMemory(I, LocationVault[i].getBase()))
continue;
S->stopTrackingLocation(S->BBWriteSetMid, i);
}
}示例4: mergeSuccessorLiveIns
bool DSEContext::processBasicBlockWithGenKillSet(SILBasicBlock *BB) {
// Compute the BBWriteSetOut at the end of the basic block.
mergeSuccessorLiveIns(BB);
// Compute the BBWriteSet at the beginning of the basic block.
BlockState *S = getBlockState(BB);
S->BBWriteSetMid = S->BBWriteSetOut;
S->BBWriteSetMid.reset(S->BBKillSet);
S->BBWriteSetMid |= S->BBGenSet;
// If BBWriteSetIn changes, then keep iterating until reached a fixed point.
return S->updateBBWriteSetIn(S->BBWriteSetMid);
}示例5: mergeSuccessorStates
bool DSEContext::processBasicBlockWithGenKillSet(SILBasicBlock *BB) {
// Compute the BBWriteSetOut at the end of the basic block.
mergeSuccessorStates(BB);
// Compute the BBWriteSetOut at the beginning of the basic block.
BlockState *S = getBlockState(BB);
llvm::BitVector T = S->BBKillSet;
S->BBWriteSetOut &= T.flip();
S->BBWriteSetOut |= S->BBGenSet;
// If BBWriteSetIn changes, then keep iterating until reached a fixed point.
return S->updateBBWriteSetIn();
}